Find the total Cost Price of masks for all the companies together.

Study the following information carefully and answer the given questions: The given data is regarding the three companies selling certain masks at certain price. Company A: Number of mask sold by company A is 100.
C.P of per mask is Rs.20. 40% mask sold at 20% profit and remaining at 10% profit. Company B: Number of mask sold by company B is 150.
C.P of per mask is Rs.48. Mask is marked up by 50% and sold at discount of 10%. Company C: Total money received by selling all masks is Rs.10800. Selling price of each mask is Rs.100. Profit earned on selling per mask is 25%.